Fix function calls with int64 params (#663)

Fixes #661

Author: antonmedv

compiler/compiler.go

@@ -345,7 +345,6 @@ func (c *compiler) IntegerNode(node *ast.IntegerNode) {
 		}
 		c.emitPush(int32(node.Value))
 	case reflect.Int64:
-		panic(fmt.Sprintf("constant %d overflows int64", node.Value))
 		c.emitPush(int64(node.Value))
 	case reflect.Uint:
 		if node.Value < 0 {

compiler/compiler_test.go

@@ -628,3 +628,25 @@ func TestCompile_optimizes_jumps(t *testing.T) {
 		})
 	}
 }
+
+func TestCompile_IntegerArgsFunc(t *testing.T) {
+	env := mock.Env{}
+	tests := []struct{ code string }{
+		{"FuncInt(0)"},
+		{"FuncInt8(0)"},
+		{"FuncInt16(0)"},
+		{"FuncInt32(0)"},
+		{"FuncInt64(0)"},
+		{"FuncUint(0)"},
+		{"FuncUint8(0)"},
+		{"FuncUint16(0)"},
+		{"FuncUint32(0)"},
+		{"FuncUint64(0)"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.code, func(t *testing.T) {
+			_, err := expr.Compile(tt.code, expr.Env(env))
+			require.NoError(t, err)
+		})
+	}
+}

test/mock/mock.go

@@ -65,6 +65,46 @@ func (p Env) FuncTyped(_ string) int {
 	return 2023
 }
 
+func (p Env) FuncInt(_ int) int {
+	return 0
+}
+
+func (p Env) FuncUint(_ uint) int {
+	return 0
+}
+
+func (p Env) FuncInt8(_ float64) int {
+	return 0
+}
+
+func (p Env) FuncInt16(_ int16) int {
+	return 0
+}
+
+func (p Env) FuncInt32(_ int32) int {
+	return 0
+}
+
+func (p Env) FuncInt64(_ int64) int {
+	return 0
+}
+
+func (p Env) FuncUint8(_ uint8) int {
+	return 0
+}
+
+func (p Env) FuncUint16(_ uint16) int {
+	return 0
+}
+
+func (p Env) FuncUint32(_ uint32) int {
+	return 0
+}
+
+func (p Env) FuncUint64(_ uint64) int {
+	return 0
+}
+
 func (p Env) TimeEqualString(a time.Time, s string) bool {
 	return a.Format("2006-01-02") == s
 }